9 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW
About 9 Rhyd Yr Helyg
9 Rhyd Yr Helyg is a three-bedroom semi-detached house in Nantgarw, Cardiff, Cardiff (CF15 7SW). It has a recorded floor area of 99 m² (around 1060 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (July 2010) shows a D (score 61), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 73). The latest certificate is from July 2010, so improvements made since then won't be reflected. Other recorded features include a conservatory.
Held since December 2010 — that's 16 years off the open market, well above the local norm. Today's modelled estimate of £218,000 sits 162.7% above the 2010 sale of £83,000. On a £-per-square-foot basis, the last sale (£78/sq ft) was about 32.7% below the postcode norm. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an annexe, meaningful when judging how the property has evolved. At 99 m² it's 24.7% larger than the typical home in the postcode (79 m² median across 5 EPCs).
What this property has
Inside
- Bedrooms3
- Dining roomYes
- CloakroomYes
- ConservatoryYes
Outside
- GarageSingle, Detached
Building
- Heating systemGas
Energy performance
9 Rhyd Yr Helyg's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 20 Jul 2020
EPC Rating
Certificate validity
Expired on 20 July 2020
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Planning history
2 applications on record at 9 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW
- May 2015AnnexFullOutcome in report
Erection of a pre-fabricated timber granny annexe for an ancillary residential use.
- Documents
- 13 docs on file
- Reference
- 15/0207/10
- More recent applications — locked
- AnnexMay 2015Decision
Unlock 9 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW's full planning history
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- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full, plus 1 notable nearby
- The 26 documents, officer reports & conditions
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Sales history & valuation
9 Rhyd Yr Helyg valuation sits well clear of the typical sold price in this postcode.
£218,000
Modelled from EPC, postcode comparables.
£83,000
Recorded with HM Land Registry.
Sales timeline
22 December 2010Most recent
£83,000
Median price across the last 5 sales in CF15 7SW: £110,000 (2025–2013).
Nearby sales in CF15 7SW
6 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW
Sold Sept 2025
£225,0002 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW
Sold Aug 2021
£160,0004 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW
Sold Apr 2017
£90,00010 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW
Sold Jul 2010
£100,5001 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW
Sold Jun 2000
£58,000
Versus other Rhyd Yr Helyg homes
Floor Area for 9 Rhyd Yr Helyg runs comfortably ahead of the street norm.
Price per m²
£842
Street avg £1,671
Floor Area
99 m²
Street avg 79 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
5.2 t/year
Street avg 3.2 t/year
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The neighbourhood at a glance
Crime
85/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Oxford Street — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







